Users can't remove on ms-sites.php

[ocean90]

On domain.de/wp-admin/ms-sites.php?action=editblog&id=1 I get the notice

Array to string conversion in /wp-includes/ms-blogs.php on line 316

And so it doesn't show on meta box "Site User" the roles of the users.

Then check a user for remove and click the button, some new notices:

Notice: Undefined index: update_home_url in /var/www/web39/html/blog/wp-admin/ms-edit.php on line 206

Notice: Undefined index: role in /wp-admin/ms-edit.php on line 225

Notice: Undefined index: role in /wp-admin/ms-edit.php on line 247

On subdomain like sub.domain.de/wp-admin/ms-sites.php?action=editblog&id=1 the roles exists, but a notice by removing a user:

Notice: Undefined index: update_home_url in /var/www/web39/html/blog/wp-admin/ms-edit.php on line 206

[wpmuguru]

(In [13460]) warnings cleanup, dont show removed user in edit site, fixes #12409

[ocean90]

I will add a patch for some notice that still exist.

[nacin]

Replying to ocean90:

I will add a patch for some notice that still exist.

Either way, make sure this stays open, the logic in [13460] looks like it'll still throw a warning if !isset( $val->meta_value )...

[ocean90]

Replying to nacin:

Either way, make sure this stays open, the logic in [13460] looks like it'll still throw a warning if !isset( $val->meta_value )...

No there is no warning, but I think we can use empty() for that

if ( empty( $val->meta_value ) ) 
  continue; 

[wpmuguru]

(In [13505]) more ms warnings cleanup, props ocean90, see #12409

[nacin]

(In [13664]) get_blog_count() returns a number, not an object. Also, i18n fixes -- add plural string, and translator context. see #12531 for get_blog_count() discussion. see #12409 for ms-sites cleanup.